You own a firm as a solo practitioner. You have one employee. As owner of that firm, you should give your employee an annual review.
So, how would you evaluate your employee in terms of production, performance, attaining goals, innovation, discipline, and accountability?
Provide specific evidence for your ratings, and then provide clear steps for improvement.
If you can’t help with the improvement, find someone who can. That’s your job as the owner, to develop your people.